Patents for H04B 3 - Line transmission systems (31,523) |
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02/16/2005 | EP1506624A2 Apparatus and method of echo-cancellation |
02/16/2005 | CN1582562A Method and system for classifying network connections |
02/16/2005 | CN1581728A User accessing device with concurrent mobile and fixed terminal proterty in wireless communication system |
02/16/2005 | CN1581719A High-speed power line communication local side device |
02/16/2005 | CN1581718A Remote current sensing and communication over single pair of power feed wires |
02/16/2005 | CN1581717A Apparatus for transmitting telephone signal in coaxial cable |
02/16/2005 | CN1581696A Receiving device and transmission device using same |
02/16/2005 | CN1190019C Reception method and receiver array for a duplex transmission system |
02/15/2005 | US6856799 Communications system, communication method and corresponding devices |
02/15/2005 | US6856684 Device and method for echo compensation in a two-wire full duplex channel transmission method |
02/15/2005 | US6856647 Methods and systems for neutral-to-ground communication |
02/15/2005 | US6856163 Power supply decoupling for parallel terminated transmission line |
02/15/2005 | CA2354732C A remote feeder reactance coil |
02/10/2005 | WO2005013476A2 Radio frequency communication between devices via a power plane on a circuit board |
02/10/2005 | WO2004109948A3 Near-end, far-end and echo cancellers in a multi-channel transceiver system |
02/10/2005 | WO2004079941A3 Digital method and device for reducing crosstalk |
02/10/2005 | WO2004065559A3 Power conditioners and pseudo isolation for a two-wire processing network |
02/10/2005 | US20050031097 Gateway with voice |
02/10/2005 | US20050030912 Use of hybrid (HW/DSP/MCU/SW) architectures for powerline OFDM communication field |
02/10/2005 | US20050030910 Full duplex wideband communications system for a local coaxial network |
02/10/2005 | US20050030909 Amplifier for downstream and upstream signals |
02/10/2005 | US20050030884 Method and system for crosstalk cancellation |
02/10/2005 | US20050030522 Characterization of active and passive optical properties of an optical device |
02/10/2005 | US20050030165 Multiplex bus interface system and method for transmitting and receiving power and data |
02/10/2005 | US20050029632 Circuit and method for suppression of electromagnetic coupling and switching noise in multilayer printed circuit boards |
02/10/2005 | US20050029007 Alien crosstalk suppression with enhanced patch cord |
02/10/2005 | DE10332756A1 Signal adapter for application in using a mains electrical power line as a means of data transmission. |
02/10/2005 | DE10331744A1 Induktive Ankoppelschaltung und Verfahren zur Nachrichtenübertragung in elektrischen Energieverteilnetzen Inductive coupling circuit and method for communication in electrical power distribution networks |
02/09/2005 | EP1505749A1 Characterization of active and passive optical properties of an optical device |
02/09/2005 | EP1505723A1 Hybrid distortion compensation method and hybrid distortion compensation device |
02/09/2005 | EP1504543A2 Data access arrangement using a high frequency transformer for electrical isolation |
02/09/2005 | EP1504542A1 Virtual speaker demonstration system and virtual noise simulation |
02/09/2005 | EP1221228B1 Local area network of serial intelligent cells |
02/09/2005 | CN2678257Y Photoelectric compound network unit |
02/09/2005 | CN1579078A ZF-based adaptive asynchronous receiver |
02/09/2005 | CN1578287A 波形均衡器 Waveform equalizer |
02/09/2005 | CN1578237A Long-distance high speed transmitting data method for Ethernet |
02/09/2005 | CN1578183A System and method for improving waveform distortion during signal transmission process |
02/09/2005 | CN1189010C High frequency network communication equipments for transmitting over various lines |
02/09/2005 | CN1189008C Apparatus and method for detecting telephone calling and modulator-demodulator containing the same apparatus |
02/09/2005 | CN1188959C Davice and method for estimating time delay of echo path |
02/09/2005 | CN1188945C Calibrating apparatus and method for amplifier |
02/08/2005 | US6854059 Method and apparatus for medium access control in powerline communication network systems |
02/08/2005 | US6853685 Circuit arrangement for the electrically isolated transfer of digital signals |
02/08/2005 | US6853679 Interconnect circuit for data transmission in an integrated circuit |
02/08/2005 | US6853626 Method and apparatus for echo cancellation in an asymmetric communication system |
02/08/2005 | US6853616 Orthogonal frequency division multiplexing receiver where FFT Window position recovery interlocks with sampling clock adjustment and method thereof |
02/03/2005 | WO2005011142A2 Data communication over power lines |
02/03/2005 | WO2005011139A1 Electronic circuit to reduce noise in digital subscriber loop and communications over unshielded twisted pair metallic conductors |
02/03/2005 | WO2005011133A2 Power line home network |
02/03/2005 | WO2005010729A2 Powerline endpoint for data communication |
02/03/2005 | WO2004079470A3 Unit for controlling the operation of devices arranged in series in a supply line |
02/03/2005 | WO2004054117A3 A power line communication system and method of operating the same |
02/03/2005 | US20050027456 Method and arrangement for signal loop test |
02/03/2005 | US20050026587 Radio frequency communication between devices via a power plane on a circuit board |
02/03/2005 | US20050025309 Digital subscriber line communicating system |
02/03/2005 | US20050025275 Apparatus of phase-frequency detector |
02/03/2005 | US20050025266 Adaptive electronic transmission signal cancellation apparatus for full duplex communication |
02/03/2005 | US20050025229 Method and apparatus for channel equalization |
02/03/2005 | US20050024999 Method and related optical disk accessing apparatus for calibrating optical disk tilt servo system according to non-constant relation between locations and tilt angles of optical disk |
02/03/2005 | US20050024083 Electronic device with serial ATA interface and signal amplitude automatic adjustment method |
02/03/2005 | US20050024066 Remote current sensing and communication over single pair of power feed wires |
02/03/2005 | DE10119039B4 Vorrichtung zur Übertragung von Daten über das Stromversorgungsnetz Apparatus for transmitting data over the power supply network |
02/02/2005 | EP1503556A2 ADSL modem apparatus and communication method thereof |
02/02/2005 | EP1503517A2 Method and apparatus for increasing receiver immunity to interference |
02/02/2005 | EP1503505A2 Noise determination and DSL Modem with noise determination |
02/02/2005 | EP1502401A1 High bandwidth data transport system |
02/02/2005 | EP1502375A2 Interference-free lms-based adaptive asynchronous receiver |
02/02/2005 | EP1502268A2 Construction of medium voltage power line data couplers |
02/02/2005 | CN1575406A Two wire output/power mechanism for remote devices |
02/02/2005 | CN1574801A Two-wire data communication |
02/02/2005 | CN1574767A On-line method for testing echoing characteristic of communication system and testing system thereof |
02/02/2005 | CN1574672A Data transfer apparatus for low voltage differential signaling |
02/02/2005 | CN1574671A Cable modem module and transmitter-receiver |
02/02/2005 | CN1187907C Deep sea long distance digital communication system based on CAN bus |
02/02/2005 | CN1187828C Semiconductor device capable of preventing generating multiple reflections, and driving and setting method |
02/01/2005 | US6850783 Methods and apparatus for mitigating the effects of microphone overload in echo cancelation systems |
02/01/2005 | US6850577 Voice and data exchange over a packet based network with timing recovery |
02/01/2005 | US6850562 Digital equalizing method and radio communication receiver implementing said method |
02/01/2005 | CA2201564C Optical repeaters for single- and multi-wavelength operation with dispersion equalization |
01/27/2005 | WO2005008913A1 Inductive coupling circuit and telecommunication method by sheathed cables of an electrical current distribution network |
01/27/2005 | WO2005008912A1 Alien crosstalk suppression with enhanced patch cord |
01/27/2005 | WO2005008911A1 Method and device for reducing common mode signal in power line communication system |
01/27/2005 | WO2005008910A1 Speech communication apparatus |
01/27/2005 | WO2005008903A2 A power line communication system and method of operating the same |
01/27/2005 | WO2005008902A2 A power line communication system and method of operating the same |
01/27/2005 | WO2005008559A2 Rf id tag |
01/27/2005 | WO2005008210A2 System and method for performing security access control based on modified biometric data |
01/27/2005 | WO2004100392B1 Method for transmitting data by means of a carrier current |
01/27/2005 | US20050022248 Optimization of a full duplex wideband communications system |
01/27/2005 | US20050020233 Repeaters sharing a common medium for communications |
01/27/2005 | US20050020232 Data communication over power lines |
01/27/2005 | US20050018857 Wired, wireless, infrared, and powerline audio entertainment systems |
01/27/2005 | US20050018801 Wobble clock generator and driving method thereof |
01/27/2005 | US20050018800 Apparatus of adjusting wobble clock |
01/27/2005 | US20050018798 Voice and data exchange over a packet based network with timing recovery |
01/27/2005 | US20050018796 Method of combining an analysis filter bank following a synthesis filter bank and structure therefor |
01/27/2005 | US20050018781 Digital subscriber line communicating system |
01/27/2005 | US20050018777 Method and apparatus for reducing noise in an unbalanced channel using common mode component |
01/27/2005 | US20050018764 Method of determining adip information through counting identical bits and different bits |